Coffee Dispenser Using Liquid Extract Mixing to Reduce Plastic Waste
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Solution Overview
Problem
Current single cup automated coffee machines generate significant plastic waste due to the use of disposable coffee grounds and lack customization options, failing to provide eco-friendly and cost-effective solutions for coffee consumers.
Innovation Solution
A coffee dispenser that mixes liquid coffee extract with hot water and optional flavorings and creamers, eliminating the need for single serving coffee grounds and allowing for customizable cup sizes and froth levels, using a computer-controlled system with valves and a pump to mix ingredients efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If disposable coffee grounds are used in single cup automated machines, then coffee preparation is simplified and automated, but significant plastic waste is generated
Solution Approach 1:
The patent changes the physical state of coffee from solid grounds to liquid extract form. This parameter change eliminates the need for disposable plastic cups containing coffee grounds, as the liquid extract can be stored in larger reusable containers and dispensed in controlled amounts, thereby reducing plastic waste while maintaining automation
Solution Approach 2:
The system uses a pump and fluid delivery mechanism to transport liquid coffee extract from storage containers through tubing to the brewing chamber. This hydraulic system enables automated coffee preparation without requiring disposable cups, as the liquid extract can be precisely delivered through controlled fluid dynamics
2Loss of substance
If liquid coffee extract is used instead of coffee grounds, then plastic waste is reduced and customization is enabled, but the device complexity increases
Solution Approach 1:
The system divides the coffee preparation process into separate functional modules: liquid extract storage, water heating, mixing/chamomile blending, and dispensing. Each module is independently controlled and can be maintained separately, which manages complexity while enabling customization and waste reduction
Solution Approach 2:
The mixing chamber serves multiple functions: it combines liquid coffee extract with hot water, adds optional flavorings and creamers, and can incorporate chamomile for relaxation benefits. This multi-functionality is achieved through a single integrated chamber controlled by a microprocessor, which manages complexity through centralized control rather than separate mechanisms
3Adaptability or versatility
If a mixing chamber with multiple input connections is used, then customization options increase, but the device complexity increases
Solution Approach 1:
The system uses pre-packaged liquid coffee extract containers that are self-contained and ready-to-use. Users simply insert the containers into the machine, and the system automatically handles the complex tasks of measuring, mixing, and dispensing, thereby providing customization without requiring users to manage the complexity of the mixing system
Solution Approach 2:
The microprocessor-controlled system monitors and adjusts the mixing process based on user selections for cup size, strength, and additional ingredients. The system provides feedback control by regulating valve opening times and pump operation to achieve the desired customization, managing complexity through intelligent control rather than mechanical complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dispenser reduces plastic waste by using liquid coffee extract, offers customization options, and provides health benefits such as weight loss and potential cancer prevention through chlorogenic acids and antioxidants, while being cost-effective and environmentally friendly.
Implementation Method 1
A pump may be connected in line between the water reservoir and the mixing chamber
Implementation Method 2
A heater may be connected in line between the pump and the mixing chamber. The heater may heat the water being mixed with the liquid coffee extract to a sufficiently hot temperature to bring out the flavor of the liquid coffee extract
Data Source
AI summary
The coffee dispenser disclosed herein may serve a single serving of coffee. The coffee dispenser may including a coffee concentrate fluid line which intersects with a water fluid line at a junction to allow mixing of coffee concentrate with water as the respective fluids flow through the coffee dispenser.